Anti-PARD3B antibodies are used in the immunodetection of the protein par-3 family cell polarity regulator beta. In humans, the canonical protein has a reported length of 1205 amino acid residues and a mass of 132.5 kDa. Its subcellular localization is in the cell junctions. Up to 6 different isoforms have been reported for this protein. It is reported to be highly expressed in the kidney, lung and skeletal muscle. A member of the PAR3 protein family, PARD3B is believed to be an adapter protein involved in asymmetrical cell division and cell polarization processes. Synonyms for this target antigen include PAR3-L protein, amyotrophic lateral sclerosis 2 (juvenile) chromosome region, candidate 19, amyotrophic lateral sclerosis 2 chromosomal region candidate gene 19 protein, and partitioning defective 3 homolog B. PARD3B gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Some PARD3B antibodies may have been used in research and have associated citations. ELISA is a widely used application for these antibodies. In addition, Western Blot is also a common application.